Ecotoxicity Bioassay of Textile Effluent
topic
Textile effluent ecotoxicity testing uses Daphnia magna acute immobilisation, algae growth inhibition, and fish egg toxicity bioassays to determine the dilution factor at which effluent toxicity to aquatic organisms is eliminated, expressed as EC50 dilution factor or toxic unit equivalent; luminescent bacteria Microtox assays provide rapid high-throughput screening of effluent toxicity.
Role
Provides the biological effects-based effluent assessment that complements chemical-specific analysis by capturing the combined toxicity of complex effluent mixtures containing multiple compounds at individually sub-threshold concentrations, increasingly required by advanced environmental permitting systems for high-impact textile industrial discharge authorisations.